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Global dependence on non-renewable energy and rising electricity costs necessitates sustainable, off-grid power solutions. Public transportation environments generate continuous mechanical stimuli (vibration and pressure) that remain largely untapped. The Smart-Seat is a piezoelectric-based micro-energy harvesting (MEH) prototype using Lead Zirconate Titanate (PZT) discs integrated into a seat cushion to convert these mechanical stresses into electrical power. This study systematically evaluated the system across multiple parameters. Electromechanical optimization identified a parallel single-layer configuration as the most efficient. Experiments varied load magnitude (5 to 15 kg), circuit configuration (series vs. parallel), and dynamic response using a vibration shaker (impact heights 27 to 57 cm). Results revealed a non-linear correlation between momentum and electrical output, with the optimized setup generating a peak open-circuit voltage of 72.4 V and a power output of 13.03 mW under a 15 kg load at 57 cm. Storage efficiency tests confirmed the system could charge a 12V battery and sustain a 9V LED for over 40 minutes, demonstrating operational reliability. These findings validate the Smart-Seat as a viable solution for self-powered vehicle IoT applications and localized lighting, contributing to decentralized and sustainable energy initiatives.

Keywords: Piezoelectricity, Mechanical Energy Harvesting, Smart-Seat, Renewable Energy, Pressure Dynamics